Here’s the summary from Goodreads:
Mechanic Mercy Thompson has friends in low places – and in dark ones. And now she owes one of them a favor. Since she can shapeshift at will, she agrees to act as some extra muscle when her vampire friend Stefan goes to deliver a message to another of his kind.
But this new vampire is hardly ordinary – and neither is the demon inside of him.
Mercy owes her vampire friend, Stefan, a favor and she agrees to go with him to meet a fellow vampire who doesn’t have permission to be in their area. Little does she know that it will land her right smack in the middle of the hunt for a rogue demon-ridden vampire. If Moon Called was full of werewolf politics, this one explores the vampires in the urban fantasy world that Patricia Briggs created. Definitely an improvement over the first book, Blood Bound is more of a page turner with all the excitement involved in going after a creepy villain. I love how Mercy had to step up and become a vampire/demon hunter ala Buffy complete with her own set of wooden stake, special knife and vampire-burning medallion.
The love triangle is still there and I hope it’ll get resolved soon. However, I don’t mind it as much as the love triangles in other books because it’s not a central aspect of the story. Yes, Mercy is torn between two great guys but I never felt frustrated that she can’t make up her mind about them. I’m still rooting for the werewolf Alpha though, I feel like he’s the better choice for Mercy.
I enjoyed reading this one for the same reasons that I liked the first book – great worldbuilding, quirky characters and a sassy female protagonist that can kick some serious butt. While I thoroughly enjoyed reading the books in this series, I haven’t fallen in love with it (yet) like I did with the Kate Daniels books. I remain hopeful though! There are still a couple of Mercy Thompson books after all. I recommend this series to all urban fantasy fans out there. Also, to those who are hesitant to read the books because of the covers, don’t worry, Mercy doesn’t really wear skimpy mechanic clothes!